var os  = require('os')
var fs  = require('fs')
var path  = require('path')

function QR8bitByte(data) {
    this.mode = QRMode.MODE_8BIT_BYTE;
    this.data = data;
    this.parsedData = [];

    // Added to support UTF-8 Characters
    for (var i = 0, l = this.data.length; i < l; i++) {
        var byteArray = [];
        var code = this.data.charCodeAt(i);

        if (code > 0x10000) {
            byteArray[0] = 0xF0 | ((code & 0x1C0000) >>> 18);
            byteArray[1] = 0x80 | ((code & 0x3F000) >>> 12);
            byteArray[2] = 0x80 | ((code & 0xFC0) >>> 6);
            byteArray[3] = 0x80 | (code & 0x3F);
        } else if (code > 0x800) {
            byteArray[0] = 0xE0 | ((code & 0xF000) >>> 12);
            byteArray[1] = 0x80 | ((code & 0xFC0) >>> 6);
            byteArray[2] = 0x80 | (code & 0x3F);
        } else if (code > 0x80) {
            byteArray[0] = 0xC0 | ((code & 0x7C0) >>> 6);
            byteArray[1] = 0x80 | (code & 0x3F);
        } else {
            byteArray[0] = code;
        }

        this.parsedData.push(byteArray);
    }

    this.parsedData = Array.prototype.concat.apply([], this.parsedData);

    if (this.parsedData.length != this.data.length) {
        this.parsedData.unshift(191);
        this.parsedData.unshift(187);
        this.parsedData.unshift(239);
    }
}

QR8bitByte.prototype = {
    getLength: function (buffer) {
        return this.parsedData.length;
    },
    write: function (buffer) {
        for (var i = 0, l = this.parsedData.length; i < l; i++) {
            buffer.put(this.parsedData[i], 8);
        }
    }
};

function QRCodeModel(typeNumber, errorCorrectLevel) {
    this.typeNumber = typeNumber;
    this.errorCorrectLevel = errorCorrectLevel;
    this.modules = null;
    this.moduleCount = 0;
    this.dataCache = null;
    this.dataList = [];
}

function QRPolynomial(num, shift) {
    if (num.length == undefined) throw new Error(num.length + "/" + shift);
    var offset = 0;
    while (offset < num.length && num[offset] == 0) offset++;
    this.num = new Array(num.length - offset + shift);
    for (var i = 0; i < num.length - offset; i++) this.num[i] = num[i + offset];
}

function QRRSBlock(totalCount, dataCount) {
    this.totalCount = totalCount, this.dataCount = dataCount;
}

function QRBitBuffer() {
    this.buffer = [], this.length = 0;
}

QRCodeModel.prototype = {
    addData: function(data) {
        var newData = new QR8bitByte(data);
        this.dataList.push(newData), this.dataCache = null;
    },
    isDark: function(row, col) {
        if (row < 0 || this.moduleCount <= row || col < 0 || this.moduleCount <= col) throw new Error(row + "," + col);
        return this.modules[row][col];
    },
    getModuleCount: function() {
        return this.moduleCount;
    },
    make: function() {
        this.makeImpl(!1, this.getBestMaskPattern());
    },
    makeImpl: function(test, maskPattern) {
        this.moduleCount = this.typeNumber * 4 + 17, this.modules = new Array(this.moduleCount);
        for (var row = 0; row < this.moduleCount; row++) {
            this.modules[row] = new Array(this.moduleCount);
            for (var col = 0; col < this.moduleCount; col++) this.modules[row][col] = null;
        }
        this.setupPositionProbePattern(0, 0),
        this.setupPositionProbePattern(this.moduleCount - 7, 0),
        this.setupPositionProbePattern(0, this.moduleCount - 7),
        this.setupPositionAdjustPattern(), this.setupTimingPattern(),
        this.setupTypeInfo(test, maskPattern),
        this.typeNumber >= 7 && this.setupTypeNumber(test),
        this.dataCache == null && (this.dataCache = QRCodeModel.createData(this.typeNumber, this.errorCorrectLevel, this.dataList)), this.mapData(this.dataCache, maskPattern);
    },
    setupPositionProbePattern: function(row, col) {
        for (var r = -1; r <= 7; r++) {
            if (row + r <= -1 || this.moduleCount <= row + r) continue;
            for (var c = -1; c <= 7; c++) {
                if (col + c <= -1 || this.moduleCount <= col + c) continue;
                0 <= r && r <= 6 && (c == 0 || c == 6) || 0 <= c && c <= 6 && (r == 0 || r == 6) || 2 <= r && r <= 4 && 2 <= c && c <= 4 ? this.modules[row + r][col + c] = !0 : this.modules[row + r][col + c] = !1;
            }
        }
    },
    getBestMaskPattern: function() {
        var minLostPoint = 0, pattern = 0;
        for (var i = 0; i < 8; i++) {
            this.makeImpl(!0, i);
            var lostPoint = QRUtil.getLostPoint(this);
            if (i == 0 || minLostPoint > lostPoint) minLostPoint = lostPoint, pattern = i;
        }
        return pattern;
    },
    createMovieClip: function(target_mc, instance_name, depth) {
        var qr_mc = target_mc.createEmptyMovieClip(instance_name, depth), cs = 1;
        this.make();
        for (var row = 0; row < this.modules.length; row++) {
            var y = row * cs;
            for (var col = 0; col < this.modules[row].length; col++) {
                var x = col * cs, dark = this.modules[row][col];
                dark && (qr_mc.beginFill(0, 100), qr_mc.moveTo(x, y), qr_mc.lineTo(x + cs, y), qr_mc.lineTo(x + cs, y + cs), qr_mc.lineTo(x, y + cs), qr_mc.endFill());
            }
        }
        return qr_mc;
    },
    setupTimingPattern: function() {
        for (var r = 8; r < this.moduleCount - 8; r++) {
            if (this.modules[r][6] != null) continue;
            this.modules[r][6] = r % 2 == 0;
        }
        for (var c = 8; c < this.moduleCount - 8; c++) {
            if (this.modules[6][c] != null) continue;
            this.modules[6][c] = c % 2 == 0;
        }
    },
    setupPositionAdjustPattern: function() {
        var pos = QRUtil.getPatternPosition(this.typeNumber);
        for (var i = 0; i < pos.length; i++) for (var j = 0; j < pos.length; j++) {
            var row = pos[i], col = pos[j];
            if (this.modules[row][col] != null) continue;
            for (var r = -2; r <= 2; r++) for (var c = -2; c <= 2; c++) r == -2 || r == 2 || c == -2 || c == 2 || r == 0 && c == 0 ? this.modules[row + r][col + c] = !0 : this.modules[row + r][col + c] = !1;
        }
    },
    setupTypeNumber: function(test) {
        var bits = QRUtil.getBCHTypeNumber(this.typeNumber);
        for (var i = 0; i < 18; i++) {
            var mod = !test && (bits >> i & 1) == 1;
            this.modules[Math.floor(i / 3)][i % 3 + this.moduleCount - 8 - 3] = mod;
        }
        for (var i = 0; i < 18; i++) {
            var mod = !test && (bits >> i & 1) == 1;
            this.modules[i % 3 + this.moduleCount - 8 - 3][Math.floor(i / 3)] = mod;
        }
    },
    setupTypeInfo: function(test, maskPattern) {
        var data = this.errorCorrectLevel << 3 | maskPattern, bits = QRUtil.getBCHTypeInfo(data);
        for (var i = 0; i < 15; i++) {
            var mod = !test && (bits >> i & 1) == 1;
            i < 6 ? this.modules[i][8] = mod : i < 8 ? this.modules[i + 1][8] = mod : this.modules[this.moduleCount - 15 + i][8] = mod;
        }
        for (var i = 0; i < 15; i++) {
            var mod = !test && (bits >> i & 1) == 1;
            i < 8 ? this.modules[8][this.moduleCount - i - 1] = mod : i < 9 ? this.modules[8][15 - i - 1 + 1] = mod : this.modules[8][15 - i - 1] = mod;
        }
        this.modules[this.moduleCount - 8][8] = !test;
    },
    mapData: function(data, maskPattern) {
        var inc = -1, row = this.moduleCount - 1, bitIndex = 7, byteIndex = 0;
        for (var col = this.moduleCount - 1; col > 0; col -= 2) {
            col == 6 && col--;
            for (;;) {
                for (var c = 0; c < 2; c++) if (this.modules[row][col - c] == null) {
                    var dark = !1;
                    byteIndex < data.length && (dark = (data[byteIndex] >>> bitIndex & 1) == 1);
                    var mask = QRUtil.getMask(maskPattern, row, col - c);
                    mask && (dark = !dark), this.modules[row][col - c] = dark, bitIndex--, bitIndex == -1 && (byteIndex++, bitIndex = 7);
                }
                row += inc;
                if (row < 0 || this.moduleCount <= row) {
                    row -= inc, inc = -inc;
                    break;
                }
            }
        }
    }
}, QRCodeModel.PAD0 = 236, QRCodeModel.PAD1 = 17, QRCodeModel.createData = function(typeNumber, errorCorrectLevel, dataList) {
    var rsBlocks = QRRSBlock.getRSBlocks(typeNumber, errorCorrectLevel), buffer = new QRBitBuffer;
    for (var i = 0; i < dataList.length; i++) {
        var data = dataList[i];
        buffer.put(data.mode, 4), buffer.put(data.getLength(), QRUtil.getLengthInBits(data.mode, typeNumber)), data.write(buffer);
    }
    var totalDataCount = 0;
    for (var i = 0; i < rsBlocks.length; i++) totalDataCount += rsBlocks[i].dataCount;
    if (buffer.getLengthInBits() > totalDataCount * 8) throw new Error("code length overflow. (" + buffer.getLengthInBits() + ">" + totalDataCount * 8 + ")");
    buffer.getLengthInBits() + 4 <= totalDataCount * 8 && buffer.put(0, 4);
    while (buffer.getLengthInBits() % 8 != 0) buffer.putBit(!1);
    for (;;) {
        if (buffer.getLengthInBits() >= totalDataCount * 8) break;
        buffer.put(QRCodeModel.PAD0, 8);
        if (buffer.getLengthInBits() >= totalDataCount * 8) break;
        buffer.put(QRCodeModel.PAD1, 8);
    }
    return QRCodeModel.createBytes(buffer, rsBlocks);
}, QRCodeModel.createBytes = function(buffer, rsBlocks) {
    var offset = 0, maxDcCount = 0, maxEcCount = 0, dcdata = new Array(rsBlocks.length), ecdata = new Array(rsBlocks.length);
    for (var r = 0; r < rsBlocks.length; r++) {
        var dcCount = rsBlocks[r].dataCount, ecCount = rsBlocks[r].totalCount - dcCount;
        maxDcCount = Math.max(maxDcCount, dcCount), maxEcCount = Math.max(maxEcCount, ecCount), dcdata[r] = new Array(dcCount);
        for (var i = 0; i < dcdata[r].length; i++) dcdata[r][i] = 255 & buffer.buffer[i + offset];
        offset += dcCount;
        var rsPoly = QRUtil.getErrorCorrectPolynomial(ecCount), rawPoly = new QRPolynomial(dcdata[r], rsPoly.getLength() - 1), modPoly = rawPoly.mod(rsPoly);
        ecdata[r] = new Array(rsPoly.getLength() - 1);
        for (var i = 0; i < ecdata[r].length; i++) {
            var modIndex = i + modPoly.getLength() - ecdata[r].length;
            ecdata[r][i] = modIndex >= 0 ? modPoly.get(modIndex) : 0;
        }
    }
    var totalCodeCount = 0;
    for (var i = 0; i < rsBlocks.length; i++) totalCodeCount += rsBlocks[i].totalCount;
    var data = new Array(totalCodeCount), index = 0;
    for (var i = 0; i < maxDcCount; i++) for (var r = 0; r < rsBlocks.length; r++) i < dcdata[r].length && (data[index++] = dcdata[r][i]);
    for (var i = 0; i < maxEcCount; i++) for (var r = 0; r < rsBlocks.length; r++) i < ecdata[r].length && (data[index++] = ecdata[r][i]);
    return data;
};

var QRMode = {
    MODE_NUMBER: 1,
    MODE_ALPHA_NUM: 2,
    MODE_8BIT_BYTE: 4,
    MODE_KANJI: 8
}, QRErrorCorrectLevel = {
    L: 1,
    M: 0,
    Q: 3,
    H: 2
}, QRMaskPattern = {
    PATTERN000: 0,
    PATTERN001: 1,
    PATTERN010: 2,
    PATTERN011: 3,
    PATTERN100: 4,
    PATTERN101: 5,
    PATTERN110: 6,
    PATTERN111: 7
}, QRUtil = {
    PATTERN_POSITION_TABLE: [ [], [ 6, 18 ], [ 6, 22 ], [ 6, 26 ], [ 6, 30 ], [ 6, 34 ], [ 6, 22, 38 ], [ 6, 24, 42 ], [ 6, 26, 46 ], [ 6, 28, 50 ], [ 6, 30, 54 ], [ 6, 32, 58 ], [ 6, 34, 62 ], [ 6, 26, 46, 66 ], [ 6, 26, 48, 70 ], [ 6, 26, 50, 74 ], [ 6, 30, 54, 78 ], [ 6, 30, 56, 82 ], [ 6, 30, 58, 86 ], [ 6, 34, 62, 90 ], [ 6, 28, 50, 72, 94 ], [ 6, 26, 50, 74, 98 ], [ 6, 30, 54, 78, 102 ], [ 6, 28, 54, 80, 106 ], [ 6, 32, 58, 84, 110 ], [ 6, 30, 58, 86, 114 ], [ 6, 34, 62, 90, 118 ], [ 6, 26, 50, 74, 98, 122 ], [ 6, 30, 54, 78, 102, 126 ], [ 6, 26, 52, 78, 104, 130 ], [ 6, 30, 56, 82, 108, 134 ], [ 6, 34, 60, 86, 112, 138 ], [ 6, 30, 58, 86, 114, 142 ], [ 6, 34, 62, 90, 118, 146 ], [ 6, 30, 54, 78, 102, 126, 150 ], [ 6, 24, 50, 76, 102, 128, 154 ], [ 6, 28, 54, 80, 106, 132, 158 ], [ 6, 32, 58, 84, 110, 136, 162 ], [ 6, 26, 54, 82, 110, 138, 166 ], [ 6, 30, 58, 86, 114, 142, 170 ] ],
    G15: 1335,
    G18: 7973,
    G15_MASK: 21522,
    getBCHTypeInfo: function(data) {
        var d = data << 10;
        while (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G15) >= 0) d ^= QRUtil.G15 << QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G15);
        return (data << 10 | d) ^ QRUtil.G15_MASK;
    },
    getBCHTypeNumber: function(data) {
        var d = data << 12;
        while (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G18) >= 0) d ^= QRUtil.G18 << QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G18);
        return data << 12 | d;
    },
    getBCHDigit: function(data) {
        var digit = 0;
        while (data != 0) digit++, data >>>= 1;
        return digit;
    },
    getPatternPosition: function(typeNumber) {
        return QRUtil.PATTERN_POSITION_TABLE[typeNumber - 1];
    },
    getMask: function(maskPattern, i, j) {
        switch (maskPattern) {
            case QRMaskPattern.PATTERN000:
            return (i + j) % 2 == 0;
            case QRMaskPattern.PATTERN001:
            return i % 2 == 0;
            case QRMaskPattern.PATTERN010:
            return j % 3 == 0;
            case QRMaskPattern.PATTERN011:
            return (i + j) % 3 == 0;
            case QRMaskPattern.PATTERN100:
            return (Math.floor(i / 2) + Math.floor(j / 3)) % 2 == 0;
            case QRMaskPattern.PATTERN101:
            return i * j % 2 + i * j % 3 == 0;
            case QRMaskPattern.PATTERN110:
            return (i * j % 2 + i * j % 3) % 2 == 0;
            case QRMaskPattern.PATTERN111:
            return (i * j % 3 + (i + j) % 2) % 2 == 0;
            default:
            throw new Error("bad maskPattern:" + maskPattern);
        }
    },
    getErrorCorrectPolynomial: function(errorCorrectLength) {
        var a = new QRPolynomial([ 1 ], 0);
        for (var i = 0; i < errorCorrectLength; i++) a = a.multiply(new QRPolynomial([ 1, QRMath.gexp(i) ], 0));
        return a;
    },
    getLengthInBits: function(mode, type) {
        if (1 <= type && type < 10) switch (mode) {
            case QRMode.MODE_NUMBER:
            return 10;
            case QRMode.MODE_ALPHA_NUM:
            return 9;
            case QRMode.MODE_8BIT_BYTE:
            return 8;
            case QRMode.MODE_KANJI:
            return 8;
            default:
            throw new Error("mode:" + mode);
        } else if (type < 27) switch (mode) {
            case QRMode.MODE_NUMBER:
            return 12;
            case QRMode.MODE_ALPHA_NUM:
            return 11;
            case QRMode.MODE_8BIT_BYTE:
            return 16;
            case QRMode.MODE_KANJI:
            return 10;
            default:
            throw new Error("mode:" + mode);
        } else {
            if (!(type < 41)) throw new Error("type:" + type);
            switch (mode) {
                case QRMode.MODE_NUMBER:
                return 14;
                case QRMode.MODE_ALPHA_NUM:
                return 13;
                case QRMode.MODE_8BIT_BYTE:
                return 16;
                case QRMode.MODE_KANJI:
                return 12;
                default:
                throw new Error("mode:" + mode);
            }
        }
    },
    getLostPoint: function(qrCode) {
        var moduleCount = qrCode.getModuleCount(), lostPoint = 0;
        for (var row = 0; row < moduleCount; row++) for (var col = 0; col < moduleCount; col++) {
            var sameCount = 0, dark = qrCode.isDark(row, col);
            for (var r = -1; r <= 1; r++) {
                if (row + r < 0 || moduleCount <= row + r) continue;
                for (var c = -1; c <= 1; c++) {
                    if (col + c < 0 || moduleCount <= col + c) continue;
                    if (r == 0 && c == 0) continue;
                    dark == qrCode.isDark(row + r, col + c) && sameCount++;
                }
            }
            sameCount > 5 && (lostPoint += 3 + sameCount - 5);
        }
        for (var row = 0; row < moduleCount - 1; row++) for (var col = 0; col < moduleCount - 1; col++) {
            var count = 0;
            qrCode.isDark(row, col) && count++, qrCode.isDark(row + 1, col) && count++, qrCode.isDark(row, col + 1) && count++, qrCode.isDark(row + 1, col + 1) && count++;
            if (count == 0 || count == 4) lostPoint += 3;
        }
        for (var row = 0; row < moduleCount; row++) for (var col = 0; col < moduleCount - 6; col++) qrCode.isDark(row, col) && !qrCode.isDark(row, col + 1) && qrCode.isDark(row, col + 2) && qrCode.isDark(row, col + 3) && qrCode.isDark(row, col + 4) && !qrCode.isDark(row, col + 5) && qrCode.isDark(row, col + 6) && (lostPoint += 40);
        for (var col = 0; col < moduleCount; col++) for (var row = 0; row < moduleCount - 6; row++) qrCode.isDark(row, col) && !qrCode.isDark(row + 1, col) && qrCode.isDark(row + 2, col) && qrCode.isDark(row + 3, col) && qrCode.isDark(row + 4, col) && !qrCode.isDark(row + 5, col) && qrCode.isDark(row + 6, col) && (lostPoint += 40);
        var darkCount = 0;
        for (var col = 0; col < moduleCount; col++) for (var row = 0; row < moduleCount; row++) qrCode.isDark(row, col) && darkCount++;
        var ratio = Math.abs(100 * darkCount / moduleCount / moduleCount - 50) / 5;
        return lostPoint += ratio * 10, lostPoint;
    }
}, QRMath = {
    glog: function(n) {
        if (n < 1) throw new Error("glog(" + n + ")");
        return QRMath.LOG_TABLE[n];
    },
    gexp: function(n) {
        while (n < 0) n += 255;
        while (n >= 256) n -= 255;
        return QRMath.EXP_TABLE[n];
    },
    EXP_TABLE: new Array(256),
    LOG_TABLE: new Array(256)
};

for (var i = 0; i < 8; i++) QRMath.EXP_TABLE[i] = 1 << i;

for (var i = 8; i < 256; i++) QRMath.EXP_TABLE[i] = QRMath.EXP_TABLE[i - 4] ^ QRMath.EXP_TABLE[i - 5] ^ QRMath.EXP_TABLE[i - 6] ^ QRMath.EXP_TABLE[i - 8];

for (var i = 0; i < 255; i++) QRMath.LOG_TABLE[QRMath.EXP_TABLE[i]] = i;

QRPolynomial.prototype = {
    get: function(index) {
        return this.num[index];
    },
    getLength: function() {
        return this.num.length;
    },
    multiply: function(e) {
        var num = new Array(this.getLength() + e.getLength() - 1);
        for (var i = 0; i < this.getLength(); i++) for (var j = 0; j < e.getLength(); j++) num[i + j] ^= QRMath.gexp(QRMath.glog(this.get(i)) + QRMath.glog(e.get(j)));
        return new QRPolynomial(num, 0);
    },
    mod: function(e) {
        if (this.getLength() - e.getLength() < 0) return this;
        var ratio = QRMath.glog(this.get(0)) - QRMath.glog(e.get(0)), num = new Array(this.getLength());
        for (var i = 0; i < this.getLength(); i++) num[i] = this.get(i);
        for (var i = 0; i < e.getLength(); i++) num[i] ^= QRMath.gexp(QRMath.glog(e.get(i)) + ratio);
        return (new QRPolynomial(num, 0)).mod(e);
    }
}, QRRSBlock.RS_BLOCK_TABLE = [ [ 1, 26, 19 ], [ 1, 26, 16 ], [ 1, 26, 13 ], [ 1, 26, 9 ], [ 1, 44, 34 ], [ 1, 44, 28 ], [ 1, 44, 22 ], [ 1, 44, 16 ], [ 1, 70, 55 ], [ 1, 70, 44 ], [ 2, 35, 17 ], [ 2, 35, 13 ], [ 1, 100, 80 ], [ 2, 50, 32 ], [ 2, 50, 24 ], [ 4, 25, 9 ], [ 1, 134, 108 ], [ 2, 67, 43 ], [ 2, 33, 15, 2, 34, 16 ], [ 2, 33, 11, 2, 34, 12 ], [ 2, 86, 68 ], [ 4, 43, 27 ], [ 4, 43, 19 ], [ 4, 43, 15 ], [ 2, 98, 78 ], [ 4, 49, 31 ], [ 2, 32, 14, 4, 33, 15 ], [ 4, 39, 13, 1, 40, 14 ], [ 2, 121, 97 ], [ 2, 60, 38, 2, 61, 39 ], [ 4, 40, 18, 2, 41, 19 ], [ 4, 40, 14, 2, 41, 15 ], [ 2, 146, 116 ], [ 3, 58, 36, 2, 59, 37 ], [ 4, 36, 16, 4, 37, 17 ], [ 4, 36, 12, 4, 37, 13 ], [ 2, 86, 68, 2, 87, 69 ], [ 4, 69, 43, 1, 70, 44 ], [ 6, 43, 19, 2, 44, 20 ], [ 6, 43, 15, 2, 44, 16 ], [ 4, 101, 81 ], [ 1, 80, 50, 4, 81, 51 ], [ 4, 50, 22, 4, 51, 23 ], [ 3, 36, 12, 8, 37, 13 ], [ 2, 116, 92, 2, 117, 93 ], [ 6, 58, 36, 2, 59, 37 ], [ 4, 46, 20, 6, 47, 21 ], [ 7, 42, 14, 4, 43, 15 ], [ 4, 133, 107 ], [ 8, 59, 37, 1, 60, 38 ], [ 8, 44, 20, 4, 45, 21 ], [ 12, 33, 11, 4, 34, 12 ], [ 3, 145, 115, 1, 146, 116 ], [ 4, 64, 40, 5, 65, 41 ], [ 11, 36, 16, 5, 37, 17 ], [ 11, 36, 12, 5, 37, 13 ], [ 5, 109, 87, 1, 110, 88 ], [ 5, 65, 41, 5, 66, 42 ], [ 5, 54, 24, 7, 55, 25 ], [ 11, 36, 12 ], [ 5, 122, 98, 1, 123, 99 ], [ 7, 73, 45, 3, 74, 46 ], [ 15, 43, 19, 2, 44, 20 ], [ 3, 45, 15, 13, 46, 16 ], [ 1, 135, 107, 5, 136, 108 ], [ 10, 74, 46, 1, 75, 47 ], [ 1, 50, 22, 15, 51, 23 ], [ 2, 42, 14, 17, 43, 15 ], [ 5, 150, 120, 1, 151, 121 ], [ 9, 69, 43, 4, 70, 44 ], [ 17, 50, 22, 1, 51, 23 ], [ 2, 42, 14, 19, 43, 15 ], [ 3, 141, 113, 4, 142, 114 ], [ 3, 70, 44, 11, 71, 45 ], [ 17, 47, 21, 4, 48, 22 ], [ 9, 39, 13, 16, 40, 14 ], [ 3, 135, 107, 5, 136, 108 ], [ 3, 67, 41, 13, 68, 42 ], [ 15, 54, 24, 5, 55, 25 ], [ 15, 43, 15, 10, 44, 16 ], [ 4, 144, 116, 4, 145, 117 ], [ 17, 68, 42 ], [ 17, 50, 22, 6, 51, 23 ], [ 19, 46, 16, 6, 47, 17 ], [ 2, 139, 111, 7, 140, 112 ], [ 17, 74, 46 ], [ 7, 54, 24, 16, 55, 25 ], [ 34, 37, 13 ], [ 4, 151, 121, 5, 152, 122 ], [ 4, 75, 47, 14, 76, 48 ], [ 11, 54, 24, 14, 55, 25 ], [ 16, 45, 15, 14, 46, 16 ], [ 6, 147, 117, 4, 148, 118 ], [ 6, 73, 45, 14, 74, 46 ], [ 11, 54, 24, 16, 55, 25 ], [ 30, 46, 16, 2, 47, 17 ], [ 8, 132, 106, 4, 133, 107 ], [ 8, 75, 47, 13, 76, 48 ], [ 7, 54, 24, 22, 55, 25 ], [ 22, 45, 15, 13, 46, 16 ], [ 10, 142, 114, 2, 143, 115 ], [ 19, 74, 46, 4, 75, 47 ], [ 28, 50, 22, 6, 51, 23 ], [ 33, 46, 16, 4, 47, 17 ], [ 8, 152, 122, 4, 153, 123 ], [ 22, 73, 45, 3, 74, 46 ], [ 8, 53, 23, 26, 54, 24 ], [ 12, 45, 15, 28, 46, 16 ], [ 3, 147, 117, 10, 148, 118 ], [ 3, 73, 45, 23, 74, 46 ], [ 4, 54, 24, 31, 55, 25 ], [ 11, 45, 15, 31, 46, 16 ], [ 7, 146, 116, 7, 147, 117 ], [ 21, 73, 45, 7, 74, 46 ], [ 1, 53, 23, 37, 54, 24 ], [ 19, 45, 15, 26, 46, 16 ], [ 5, 145, 115, 10, 146, 116 ], [ 19, 75, 47, 10, 76, 48 ], [ 15, 54, 24, 25, 55, 25 ], [ 23, 45, 15, 25, 46, 16 ], [ 13, 145, 115, 3, 146, 116 ], [ 2, 74, 46, 29, 75, 47 ], [ 42, 54, 24, 1, 55, 25 ], [ 23, 45, 15, 28, 46, 16 ], [ 17, 145, 115 ], [ 10, 74, 46, 23, 75, 47 ], [ 10, 54, 24, 35, 55, 25 ], [ 19, 45, 15, 35, 46, 16 ], [ 17, 145, 115, 1, 146, 116 ], [ 14, 74, 46, 21, 75, 47 ], [ 29, 54, 24, 19, 55, 25 ], [ 11, 45, 15, 46, 46, 16 ], [ 13, 145, 115, 6, 146, 116 ], [ 14, 74, 46, 23, 75, 47 ], [ 44, 54, 24, 7, 55, 25 ], [ 59, 46, 16, 1, 47, 17 ], [ 12, 151, 121, 7, 152, 122 ], [ 12, 75, 47, 26, 76, 48 ], [ 39, 54, 24, 14, 55, 25 ], [ 22, 45, 15, 41, 46, 16 ], [ 6, 151, 121, 14, 152, 122 ], [ 6, 75, 47, 34, 76, 48 ], [ 46, 54, 24, 10, 55, 25 ], [ 2, 45, 15, 64, 46, 16 ], [ 17, 152, 122, 4, 153, 123 ], [ 29, 74, 46, 14, 75, 47 ], [ 49, 54, 24, 10, 55, 25 ], [ 24, 45, 15, 46, 46, 16 ], [ 4, 152, 122, 18, 153, 123 ], [ 13, 74, 46, 32, 75, 47 ], [ 48, 54, 24, 14, 55, 25 ], [ 42, 45, 15, 32, 46, 16 ], [ 20, 147, 117, 4, 148, 118 ], [ 40, 75, 47, 7, 76, 48 ], [ 43, 54, 24, 22, 55, 25 ], [ 10, 45, 15, 67, 46, 16 ], [ 19, 148, 118, 6, 149, 119 ], [ 18, 75, 47, 31, 76, 48 ], [ 34, 54, 24, 34, 55, 25 ], [ 20, 45, 15, 61, 46, 16 ] ], QRRSBlock.getRSBlocks = function(typeNumber, errorCorrectLevel) {
    var rsBlock = QRRSBlock.getRsBlockTable(typeNumber, errorCorrectLevel);
    if (rsBlock == undefined) throw new Error("bad rs block @ typeNumber:" + typeNumber + "/errorCorrectLevel:" + errorCorrectLevel);
    var length = rsBlock.length / 3, list = [];
    for (var i = 0; i < length; i++) {
        var count = rsBlock[i * 3 + 0], totalCount = rsBlock[i * 3 + 1], dataCount = rsBlock[i * 3 + 2];
        for (var j = 0; j < count; j++) list.push(new QRRSBlock(totalCount, dataCount));
    }
    return list;
}, QRRSBlock.getRsBlockTable = function(typeNumber, errorCorrectLevel) {
    switch (errorCorrectLevel) {
        case QRErrorCorrectLevel.L:
        return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 0];
        case QRErrorCorrectLevel.M:
        return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 1];
        case QRErrorCorrectLevel.Q:
        return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 2];
        case QRErrorCorrectLevel.H:
        return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 3];
        default:
        return undefined;
    }
}, QRBitBuffer.prototype = {
    get: function(index) {
        var bufIndex = Math.floor(index / 8);
        return (this.buffer[bufIndex] >>> 7 - index % 8 & 1) == 1;
    },
    put: function(num, length) {
        for (var i = 0; i < length; i++) this.putBit((num >>> length - i - 1 & 1) == 1);
    },
    getLengthInBits: function() {
        return this.length;
    },
    putBit: function(bit) {
        var bufIndex = Math.floor(this.length / 8);
        this.buffer.length <= bufIndex && this.buffer.push(0), bit && (this.buffer[bufIndex] |= 128 >>> this.length % 8), this.length++;
    }
};
var QRCodeLimitLength=[[17,14,11,7],[32,26,20,14],[53,42,32,24],[78,62,46,34],[106,84,60,44],[134,106,74,58],[154,122,86,64],[192,152,108,84],[230,180,130,98],[271,213,151,119],[321,251,177,137],[367,287,203,155],[425,331,241,177],[458,362,258,194],[520,412,292,220],[586,450,322,250],[644,504,364,280],[718,560,394,310],[792,624,442,338],[858,666,482,382],[929,711,509,403],[1003,779,565,439],[1091,857,611,461],[1171,911,661,511],[1273,997,715,535],[1367,1059,751,593],[1465,1125,805,625],[1528,1190,868,658],[1628,1264,908,698],[1732,1370,982,742],[1840,1452,1030,790],[1952,1538,1112,842],[2068,1628,1168,898],[2188,1722,1228,958],[2303,1809,1283,983],[2431,1911,1351,1051],[2563,1989,1423,1093],[2699,2099,1499,1139],[2809,2213,1579,1219],[2953,2331,1663,1273]];

function _getUTF8Length(sText) {
    var replacedText = encodeURI(sText).toString().replace(/\%[0-9a-fA-F]{2}/g, 'a');
    return replacedText.length + (replacedText.length != sText ? 3 : 0);
}

function _getTypeNumber(sText, nCorrectLevel) {
    var nType = 1;
    var length = _getUTF8Length(sText);

    for (var i = 0, len = QRCodeLimitLength.length; i <= len; i++) {
        var nLimit = 0;

        switch (nCorrectLevel) {
            case QRErrorCorrectLevel.L :
            nLimit = QRCodeLimitLength[i][0];
            break;
            case QRErrorCorrectLevel.M :
            nLimit = QRCodeLimitLength[i][1];
            break;
            case QRErrorCorrectLevel.Q :
            nLimit = QRCodeLimitLength[i][2];
            break;
            case QRErrorCorrectLevel.H :
            nLimit = QRCodeLimitLength[i][3];
            break;
        }

        if (length <= nLimit) {
            break;
        } else {
            nType++;
        }
    }

    if (nType > QRCodeLimitLength.length) {
        throw new Error("Too long data");
    }

    return nType;
}


function renderRow(oQRCode, row, nCount) {
    let line = '';
    for (var col = 0; col < nCount; col++) {
        line += (oQRCode.isDark(row, col) ? '\033[40;30m██\033[0m' : '\033[47;37m██\033[0m');
    }
    return line+'\n';
}

function showCode(text) {
    const correctLevel =  QRErrorCorrectLevel.H;
    const oQRCode = new QRCodeModel(_getTypeNumber(text, correctLevel), correctLevel);
    oQRCode.addData(text);
    oQRCode.make();
    const nCount = oQRCode.getModuleCount();

    let panel = '';
    for (var row = 0; row < nCount; row++) {
        panel += renderRow(oQRCode, row, nCount);
    }
    const fontSize = 288/nCount;
    require('child_process').exec(`osascript -l JavaScript -e "window=Application('Terminal').windows[0];frame=window.frame();window.selectedTab.fontSize=${fontSize};window.frame=frame"`);
    console.log(panel);
}

function renderRow(oQRCode, row, nCount, size) {
    let line = '<div style="display:flex;flex-direction:row">';
    for (var col = 0; col < nCount; col++) {
        line += `<div style="width:${size}px;height:${size}px;background:${oQRCode.isDark(row, col) ? 'black' : 'white'}"></div>`;
    }
    return line+'</div>';
}

function showBrowerCode(text) {
    const correctLevel =  QRErrorCorrectLevel.H;
    const oQRCode = new QRCodeModel(_getTypeNumber(text, correctLevel), correctLevel);
    oQRCode.addData(text);
    oQRCode.make();
    const nCount = oQRCode.getModuleCount();
    const size = Math.ceil(300/nCount);
    const tsize = size * nCount;

    let panel = '<html><body style="display:flex;justify-content:center;align-items:center;">';
    panel += `<div style="width:${tsize}px;height:${tsize}px;border:1px solid gray;">`;
    for (var row = 0; row < nCount; row++) {
        panel += renderRow(oQRCode, row, nCount, size);
    }
    panel += '</div></body></html>';
    const url = path.join(os.tmpdir(), 'qrcode.html');
    fs.writeFileSync(url, panel);
    require('child_process').exec(`start ${url}`);
}

function resetScreen() {
    if (os.platform() === 'darwin') {
        require('child_process').exec(`osascript -l JavaScript -e "window=Application('Terminal').windows[0];frame=window.frame();window.selectedTab.fontSize=18;window.frame=frame;Application('System Events').keystroke('k', {using: 'command down'});"`);
    }
}

module.exports = {
    showCode: os.platform() === 'darwin' ? showCode : showBrowerCode,
    resetScreen,
};
